若实数x,y满足x²+y²-4x-2y+5=0,则根号下x+y/根号下3y-2根号下x的值是( )
若实数x,y满足根号下(x+2)加根号下(y-根号下3)的平方=0,则xy的值是()
若实数x、y满足x²+y²+4x-6y+4=0,则根号下(x²+y²)的最大值是
已知实数x,y满足根号下2x+y-3+(X-2Y-4)的绝对值=0,求x的平方+立方根y-5的值
已知实数x,y满足下x^2+根号2y=根号3,y^2+根号2x=根号3,求x/y+y/x
x,y是实数,且满足y=根号下2x+4 + 根号下4-2x+3,求x的y次方
x y a满足根号下x+y-8+根号下8-x-y=根号下3x-y-a+根号下x-2y+a+3
若实数x,y满足x平方+y平方-4x-2y+5=0,求根号下3y-2根号下x分之根号x+y
若实数x,y满足根号下x+2+(y-根号下3)平方=0,则xy的值是?
已知x、y满足根号下4x-5y+根号下x-y-1=0,则根号下xy-根号下x/y
已知实数x,y满足根号下3x+2y-25加根号下4x-y-4
已知实数x,y满足(x-根号下[x平方-2013])X(y-根号下[y平方-2013])=2013则3(x平方)-2(y
若实数x、y满足x^2+y^2+4x-2y-4=0,则根号下(x^2+y^2)的最大值是多少?